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Finding the Fourth Proportional to 111,756.60, 167,829.30 and 108,257.40

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Solution

The fourth proportional to 111,756.60, 167,829.30 and 108,257.40 is: 162,574.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,756.60 : 167,829.30 = 108,257.40 : x
  2. Step 2: Convert to fraction form
    111,756.60/167,829.30 = 108,257.40/x
  3. Step 3: Cross multiply
    111,756.60x = 167,829.30 × 108,257.40
  4. Step 4: Simplify right side
    111,756.60x = 18,168,763,661.82
  5. Step 5: Solve for x
    x = 18,168,763,661.82/111,756.60
  6. Step 6: Final answer
    x = 162,574.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.